x448

Documentation

Overview

Package x448 implements the X448 Elliptic Curve Diffie-Hellman algorithm. See RFC 8032.

Index

• Constants
• func GenerateKey(rand io.Reader) (PublicKey, PrivateKey, error)
• func X448(scalar, point []byte) ([]byte, error)
• type PrivateKey
  • func NewKeyFromSeed(seed []byte) PrivateKey
  • func (priv PrivateKey) Equal(x crypto.PrivateKey) bool
  • func (priv PrivateKey) Public() crypto.PublicKey
  • func (priv PrivateKey) Seed() []byte
• type PublicKey
  • func (pub PublicKey) Equal(x crypto.PublicKey) bool

Constants

const (
	// PublicKeySize is the size, in bytes, of public keys as used in this package.
	PublicKeySize = 56
	// PrivateKeySize is the size, in bytes, of private keys as used in this package.
	PrivateKeySize = 112
	// SignatureSize is the size, in bytes, of signatures generated and verified by this package.
	SignatureSize = 112
	// SeedSize is the size, in bytes, of private key seeds. These are the private key representations used by RFC 8032.
	SeedSize = 56
)

Functions

func GenerateKey

func GenerateKey(rand io.Reader) (PublicKey, PrivateKey, error)

GenerateKey generates a public/private key pair using entropy from rand. If rand is nil, crypto/rand.Reader will be used.

func X448

func X448(scalar, point []byte) ([]byte, error)

X448 returns the result of the scalar multiplication (scalar * point), according to RFC 7748, Section 5. scalar, point and the return value are slices of 56 bytes.

Types

type PrivateKey

type PrivateKey []byte

PrivateKey is the type of X448 private keys.

func NewKeyFromSeed

func NewKeyFromSeed(seed []byte) PrivateKey

NewKeyFromSeed calculates a private key from a seed. It will panic if len(seed) is not SeedSize. This function is provided for interoperability with RFC 8032. RFC 8032's private keys correspond to seeds in this package.

func (PrivateKey) Equal

func (priv PrivateKey) Equal(x crypto.PrivateKey) bool

Equal reports whether priv and x have the same value.

func (PrivateKey) Public

func (priv PrivateKey) Public() crypto.PublicKey

Public returns the PublicKey corresponding to priv.

func (PrivateKey) Seed

func (priv PrivateKey) Seed() []byte

Seed returns the private key seed corresponding to priv. It is provided for interoperability with RFC 8032. RFC 8032's private keys correspond to seeds in this package.

type PublicKey

type PublicKey []byte

PublicKey is the type of X448 public keys.

func (PublicKey) Equal

func (pub PublicKey) Equal(x crypto.PublicKey) bool

Equal reports whether pub and x have the same value.